30分同時同量を目的としたマイクログリッドの設備構成最適化に対する太陽光発電出力予測精度の影響

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2011/10/01

タイトル(英語): Influence of Forecast Accuracy of Photovoltaic Power Output on Capacity Optimization of Microgrid Composition under 30 min Power Balancing Control

著者名: 曽根　昭仁（名古屋大学大学院工学研究科），加藤　丈佳（名古屋大学大学院工学研究科），島陰　豊成（(株) NTTファシリティーズ研究開発本部），鈴置　保雄（名古屋大学大学院工学研究科）

著者名(英語): Akihito Sone (Graduate School of Engneering, Nagoya University), Takeyoshi Kato (Graduate School of Engneering, Nagoya University), Toyonari Shimakage (R&D Headquarters, NTT Facilities, Inc.), Yasuo Suzuoki (Graduate School of Engneering, Nagoya University)

キーワード: マイクログリッド，太陽光発電，日射量，予測，30分同時同量　　microgrid，photovoltaic power generation，insolation，forecast，power balance in supply and demand over 30 min

要約(英語): A microgrid (MG) is one of the measures for enhancing the high penetration of renewable energy (RE)-based distributed generators (DGs). If a number of MGs are controlled to maintain the predetermined electricity demand including RE-based DGs as negative demand, they would contribute to supply-demand balancing of whole electric power system. For constructing a MG economically, the capacity optimization of controllable DGs against RE-based DGs is essential. By using a numerical simulation model developed based on a demonstrative study on a MG using PAFC and NaS battery as controllable DGs and photovoltaic power generation system (PVS) as a RE-based DG, this study discusses the influence of forecast accuracy of PVS output on the capacity optimization. Three forecast cases with different accuracy are compared. The main results are as follows. Even with no forecast error during every 30 min. as the ideal forecast method, the required capacity of NaS battery reaches about 40% of PVS capacity for mitigating the instantaneous forecast error within 30 min. The required capacity to compensate for the forecast error is doubled with the actual forecast method. The influence of forecast error can be reduced by adjusting the scheduled power output of controllable DGs according to the weather forecast. Besides, the required capacity can be reduced significantly if the error of balancing control in a MG is acceptable for a few percentages of periods, because the total periods of large forecast error is not so often.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.131 No.10 （2011） 特集：再生可能エネルギーの出力変動対応技術

本誌掲載ページ: 1697-1704 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/131/10/131_10_1697/_article/-char/ja/